Valve construction



Aug. 12, 1941. P G, KLUSE Er-AL 2,252,185

VALVE CONSTRUCTION Filed May 27, 1940 Ey. Z

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C AND RALPHcTCAMo/VILE BW ya?? A TTORNE Y Patented ug. 12, 1941 TENT QFFHCE VALVE CONSTRUCTION Peter G. Kluse, Los Angeles, and Ralph C. Cainornile, Santa Monica, Calif.

Application May 27, 1940, Serial No. 337,454

4 Claims.

This invention relates to a valve construction.

Among the objects of the invention. are: To provide an improved valve structure which will alford to the user denite knowledge oi the amount of flow passing through it; to provide easier and more accurate control of the valve when it is operated either completely to shut ofi the iiow or to vary the quantities which are passing through it per unit of time; to do away, in a superior manner, with all huid pressures di rectly against gaskets; to eliminate all washers on bearing surfaces, without impairing eflicient functioning of the valve; to increase wearing quality by reducing the amount of travel oi working parts; and to eliminate all threaded Ascrew parts on the operating handle or stein and packing gland construction around same.

Other objects, advantages and features of invention will hereinafter appear.

Referring to the accompanying drawing, which illustrates what is at present deemed to be a preferred embodiment of the invention.

Fig. 1 is a view partly in end elevation and partly in cross-section, the sectioned portion oi the View occupying the plane indicated by the line I--I in Fig. 2.

Fig. 2i is a longitudinal midmsection with parts in elevation, the plane of the sectioned portion of the View being indicated by the line 2-2 in Fig. 1,

Fig. 3 is a developed diagram of the ports of the valve.

Fig. 4 is an end elevation of Fig. 3.

Referring in detail to the drawing, the body portion l of the casing preferably consists of I a casting or a bored out hollow block which, by preference and as shown is rectangular in all cross-sections, as well as having flat end faces which are disposed at right angles to its top and sides. Said casing has extending longitudinally through it an elongated chamber ll which is shown as being circular in cross-section throughout all portions of its length, and though not necessarily frusto conical, this chamber is so shown in the drawing.

Within said chamber H is turnably fitted a hollow tapered valve plug I5 having a row of substantially parallel segmental slots 9d, 9b, 9c, 9d, 9e and Bf, of equal widths which extend through its curved wall to form outlet ports. Also a small round outlet port It is shown.

These segmental slots are arranged with one end imaginary line drawn through said slot ends and said small port the plug has an imperiorate wall, segmental ports of varying lengths resulting at one side only of such a line. The various slots are all shown as being of substantially the same widths, the width of each slot being substantially the saine as 'ie diameter of the small, circular port it.

At its small end the hollow plug it has an end wall 2t with centrally xed to it a shaft 2l which has its bearing in the cover plate 22 at that end of the casing. Said shaft 2l has a central extension 'it carrying a cap 2li which is secured to it by a pin 2da. Said extension 23 is i encircled by a compression spring 25, said spring acting between the cap extension 23 and the inside of the small cap 2H to frictionally hold the valve plug in its rotationally adjusted position. The cover plate 2E is shown attached to the casing by cap screws 29.

The large end of the valve plug is furnished with a wall 3d, fixed centrally to which is a projecting operating stern di to the outer end of which is secured a hand wheel 32. This end oi the casing has a cover plate 33 attached by cap screws 3d and having a tubular central bearing projection 35 for the shaft 3l. In its upper portion the outer face of said plate 33 is furnished with an arcuately arranged series of numbered graduations da with which cooperates a pointer or indicator il secured to the inner side of the peripheral portion o the han-d wheel 32.

The casing is provided with an elongated insert member ed having a longitudinal row` of circular outlet ports 5 which are spaced and positioned properly to register with the valve plug ports which have already been described. Said member dit is shown as an elongated,` rectangular part having a ange 46 extending along each of its sides, said flange being iiush with the hat outer face of the inserted part lill. Adjacent to this insert member the body portion of the casing has a cap i9 held in place in a clamping relation to said insert member by means of cap screws .'ii. The casing body I0 has angular recesses 5l of the proper shape and size to receive the iianges it of said insert member, while the body portion of said member occupies a suitable opening provided for it through the wall of the casing body It. The recessed part 5l of the casing affords stop means for said flanges 45 to cause said insert member to be held by the cap 49 in a working nt contactual relation to the plug l5.

The cap 49 has an elongated outlet channel or passage 52 overlying all the openings 45 of the insert member 44, and also has a tubular outlet extension 53 in communication with the passage 52.

To the opposite side of the casing is attached a closure plate or cap 55 by means of cap screws 56, this cap having an exterior tubular inlet extension 5l which communicates interiorly of the casing with a spout 58. The hollow plug l5 has through it a segmental inlet slot 60 through which said spout projects in all rotational positions of said plug. This spout cooperates with the ends of the slot to limit the turning movements of the plug.

When the hollow valve plug is manufactured the various slots indicated by the numerals 9 provided with alphabetical exponents as shown, together with the port I6, will all be relatively positioned as shown in Fig. 3. The slots, however, need not be arranged in the precise manner shown in this View in regard to the longer slots being in the center. The parts will be assembled in such relative positions that when turning movements are given to the hollow plug l5 by means of the hand wheel 32, in the step-by-step fashion indicated by the pointer 4l in cooperation with the numbered graduations 48, the lower end (as viewed in Fig. 3) of the slot 5c will first come into register with the central port of the series of ports 35 with which the insert member 44 is provided. This will take place when the pointer 4| is moved from 0 to l of the graduations. An additional forward turning movement of the hand wheel will bring the pointer opposite to the graduation 2, at which time an end portion of the slot Sd will come into alinement with another of the ports 45. Likewise turning the hand wheel farther will successively bring the slots 9h, 9e, 3a and 8f, and iinally the port IS into register with the ports 45, at which time the greatest amount of iiow provided for will be taking place. It is to be understood that the elongated passage 52 which communicates with all the ports 15 and with the tubular outlets 53 will be of a suficient size to deliver the full volume of liquid at this time.

By providing the rotatable valve plug I5 with segmental slots to cooperate with the apertures in the insert member 44, a more smoothly operating means is afforded for turning on increased, accurately determined quantities of the liquid, because it is not necessary to bring cooperating ports into exact register with each other. Also byvmaking the valve plug a complete annulus the cost of manufacture is less than it would be if a segmental member were substituted for said plug.

Cost of manufacture is lowered by providing slots to take the place of port elements that have hitherto been represented in the art by groups of round holes. Also, owing to the slots as shown in the drawing of the present application being narrower than the holes with which they cooperate there is less objection to forming the holes by casting, because slight irregularities in the sizes of the holes do not so much aiect accurate regulation of the ilow of liquid through the device.

We claim:

1. In a valve structure, a casing containing an elongated chamber which is circular in crosssection, a hollow valve plug iitted rotatably within said chamber, said plug having a plurality of segmental substantially parallel slots varying in length through a side portion thereof to form outlet ports, there being a plurality of outlet ports in a wall of said casing which are positioned for registering individually with ndividual slots of the plurality of slots aforementioned, an extension of said casing, said extension having an outlet passage which communicates with said plurality of outlet ports, iluid supply means communicating with the interior of said hollow valve plug, and means to turn said valve plug to vary the number of said slots which are in registry with said outlet ports, said slots being materially narrower than said ports, thereby lessening the importance of precisely dimensioning said ports.

2. The subject matter of claim l and, said ports being substantially circular holes slightly greater in diameter than the slots with which they cooperate.

3. ln a valve structure, a casing containing an elongated chamber which is circular in crosssection, a hollow valve plug turnably iitted within said chamber, said plug having a plurality of ports varying in their circumferential positions in relation to the plug, an elongated insert member confined to the space enclosed by said casing having through it a longitudinally extending plurality of openings, the wall of said casing containinrf a recess to removably contain said insert member in a position wherein said ports are individually registrable with individual openings of said plurality of openings, a cap removably secured to the casing in an overlying relation to said insert member, sai-d cap having an outlet passage and a channel in its inner face which registers with the openings of said insert member and also communicates with said outlet passage, and fluid supply means communicating interiorly with said plug, there being stop means on the casing against which said insert member is held by said cap in a working fit contact with said plug.

4. The subject matter of claim 3 and, the recess for said insert member having a widened outer portion, said member having a flanged outer portion fitting into said widened portion of the recess, and said cap abutting against the iianged portion of said insert member to hold the latter in its operative position.

PETER G. KLUSE. RALPH C. CAMOMILE. 

